Someone wants my big block. Ls costs???

[ls1nova71]

The biggest factor is something you didn't mention, whether or not you are going to do it yourself or have a shop do it. If you are crafty and can do all your own work, or the majority of it, then you can do a swap pretty reasonably, however, if you have to pay someone, then expect it to get expensive in a hurry.

[MDPotter]

Good point ls1nova71.

What I should have mentioned also is that you can't have the expectation that you will get a dropout unit off eBay and that it will be perfect. Mine showed up with a lot of rust and corrosion as if it was sitting in the elements for months. I ended up painting the block, replacing the water pump, sandblasting and painting the alternator/power steering bracket, as well as replacing a couple sensors that were broken. Insist on good pictures of the engine before buying so you know what you're getting.

If you end up with a decent dropout, you still have to replace plugs, wires, water pump, knock sensors, intake gasket, exhaust manifolds/gaskets, tensioner pulley, idler pulley, etc. as good measure and those costs add up.

Not trying to talk you out of it, just want you to have realistic expectations.